A note about Canadian data sources: Many datasets from Canadian sources are not in the public domain due to a desire to protect cultural resources and heritage sites. BC and other provinces have laws to protect and respect people's privacy, and laws and professional practices at every level of government and within scholarship aim to respect Indigenous knowledge and sovereignty. The data you seek may not be publicly available for these reasons. Furthermore Canada has only recently mandated the publicly funded research provide open data, this research data may be embargoed for a period of time for a variety of reasons, and we put our data in a variety of repositories - including national and provincial repositories, university repositories, publisher's repositories and more. These can be very specific in theme and focus, or they can be broad in scope.
There are a variety of ways to approach finding data - and often a combination is very useful.
We highly recommend that you seek a relevant data respository using Re3Data's searchable index before attempting an open web search, or use one of the resources listed below.